CN213817582U - Power supply filtering module - Google Patents
Power supply filtering module Download PDFInfo
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- CN213817582U CN213817582U CN202023240467.3U CN202023240467U CN213817582U CN 213817582 U CN213817582 U CN 213817582U CN 202023240467 U CN202023240467 U CN 202023240467U CN 213817582 U CN213817582 U CN 213817582U
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Abstract
The utility model provides a power supply filtering module, which comprises a shell and an internal circuit, wherein the internal circuit is arranged in the shell and comprises an inductance module, a capacitance module and a filter; the inductance module is connected with the first input end and the second input end; the capacitor module comprises capacitors connected in parallel, one end of the capacitor module is connected with the inductor module, and the other end of the capacitor module is connected with the input of the filter; the grounding wire of the filter is grounded, and the output end of the filter is connected with the first input end and the second input end. The utility model discloses power filter module uses at the long line control motor system more than 2000 meters, and data transmission failure frequency obviously reduces.
Description
Technical Field
The utility model relates to a power filter equipment technical field, concretely relates to power filter module.
Background
The power filter is a filter circuit consisting of a capacitor, an inductor and a resistor, is also called as a power EMI filter, or is an EMI power filter, and is a passive bidirectional network, wherein one end of the passive bidirectional network is a power supply, and the other end of the passive bidirectional network is a load. The principle of the power supply filter is that an impedance adaptation network: the greater the impedance adaptation of the input and output sides of the power filter to the power and load sides, the more effective the attenuation of electromagnetic interference. The filter can effectively filter the frequency point of the specific frequency in the power line or the frequencies except the frequency point to obtain a power signal of the specific frequency or eliminate the power signal of the specific frequency.
However, the conventional power supply filtering equipment is mainly applied to harmonic waves and clutter generated in daily industry, and has small effect on the harmonic waves and the clutter generated by a long-line control motor system with the length of more than 2000 meters.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a power filter module is used at the long line control motor system more than 2000 meters.
In order to solve the above technical problem, the present invention provides a power filtering module, which includes a housing and an internal circuit, wherein the internal circuit is disposed in the housing, and the internal circuit includes an inductance module, a capacitance module and a filter;
the inductance module is connected with the first input end and the second input end;
the capacitor module comprises capacitors connected in parallel, one end of the capacitor module is connected with the inductor module, and the other end of the capacitor module is connected with the input of the filter;
the grounding wire of the filter is grounded, and the output end of the filter is connected with the first input end and the second input end.
Furthermore, the inductance module comprises a magnetic ring and a copper wire, and the front end of the inductance module is connected with the first output end and the second output end.
Further, the capacitor of the capacitor module is a safety capacitor.
Further, the shell is made of a 1.5 mm thick steel plate.
The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:
the utility model discloses power filter module uses at the long line control motor system more than 2000 meters, and data transmission failure frequency obviously reduces.
Drawings
Fig. 1 is a schematic structural diagram of the power filter module of the present invention.
1. An inductance module; 2. a capacitive module; 3. a filter; A. a first output terminal; B. a second output terminal; a1, a first input; b1, a second input terminal.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following description will be made with reference to fig. 1 of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.
Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the invention. Thus, the appearances of the phrases "in one embodiment," "in an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Example one
As shown in fig. 1: a power supply filtering module comprises a shell and an internal circuit, wherein the internal circuit is arranged in the shell and comprises an inductance module 1, a capacitance module 2 and a filter 3;
the inductance module 1 is connected with a first input end A and a second input end B;
the capacitor module 2 comprises capacitors connected in parallel, one end of the capacitor module 2 is connected with the inductor module 1, and the other end of the capacitor module is connected with the input of the filter 3;
the ground line of the filter 3 is grounded, and the output end of the filter 3 is connected with the first input end A1 and the second input end B1.
According to one embodiment of the present invention, as shown in figure 1,
the inductance module 1 comprises a magnetic ring and a copper wire, and the front end of the inductance module 1 is connected with a first output end A and a second output end B.
According to one embodiment of the present invention, as shown in figure 1,
the capacitor of the capacitor module 2 is a safety capacitor. The safety capacitor can not cause electric shock after the capacitor fails, and does not endanger personal safety. In addition, the power supply filter has a power supply filtering effect and respectively has a filtering effect on common-mode interference and differential-mode interference.
In one embodiment of the present invention, as shown in figure 1,
the shell adopts 1.5 millimeter thick steel plate, and stability is better, more can adapt to adverse circumstances.
In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. A power filter module, comprising: the circuit comprises a shell and an internal circuit, wherein the internal circuit is arranged in the shell and comprises an inductance module, a capacitance module and a filter;
the inductance module is connected with the first input end and the second input end;
the capacitor module comprises capacitors connected in parallel, one end of the capacitor module is connected with the inductor module, and the other end of the capacitor module is connected with the input of the filter;
the grounding wire of the filter is grounded, and the output end of the filter is connected with the first input end and the second input end.
2. The power filter module of claim 1, wherein: the inductance module comprises a magnetic ring and a copper wire, and the front end of the inductance module is connected with a first output end and a second output end.
3. The power filter module of claim 1, wherein: the capacitor of the capacitor module is an ampere-standard capacitor.
4. The power filter module of claim 1, wherein: the shell is made of a 1.5 mm thick steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023240467.3U CN213817582U (en) | 2020-12-29 | 2020-12-29 | Power supply filtering module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023240467.3U CN213817582U (en) | 2020-12-29 | 2020-12-29 | Power supply filtering module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213817582U true CN213817582U (en) | 2021-07-27 |
Family
ID=76949423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023240467.3U Active CN213817582U (en) | 2020-12-29 | 2020-12-29 | Power supply filtering module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213817582U (en) |
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2020
- 2020-12-29 CN CN202023240467.3U patent/CN213817582U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A power filter module Effective date of registration: 20220304 Granted publication date: 20210727 Pledgee: Xinxiang Sanxing Petroleum Technology Co.,Ltd. Pledgor: XINXIANG CITY XIAFENG ELECTRICAL APPLIANCES Co.,Ltd. Registration number: Y2022980002198 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |